npm i vue-cookies --save

import VueCookies from 'vue-cookies';
Vue.use(VueCookies)

this.$cookies.set("token", value1, {expires: "7D"});
  // keyName => "token"
  // value =>  value1
  // 設(shè)置過期時間 = > {expires: "7D"}

this.$cookies.get(keyName)       // return value   

this.$cookies.remove(keyName [, path [, domain]])   // return this

this.$cookies.isKey(keyName)        // return false or true

this.$cookies.keys()  // return a array

// 30天后過期
this.$cookies.config('30d')
this.$cookies.config(new Date(2019,03,13).toUTCString())
this.$cookies.config(60 * 60 * 24 * 30,'');
// window object
window.$cookies.config('30d')

//不寫過期時間，默認為1天過期
this.$cookies.set("user_session","25j_7Sl6xDq2Kc3ym0fmrSSk2xV2XkUkX")
// 1天過期，忽略大小寫
this.$cookies.set("user_session","25j_7Sl6xDq2Kc3ym0fmrSSk2xV2XkUkX","1d")
this.$cookies.set("user_session","25j_7Sl6xDq2Kc3ym0fmrSSk2xV2XkUkX","1D")
// 以秒為單位，設(shè)置1天過去
this.$cookies.set("user_session","25j_7Sl6xDq2Kc3ym0fmrSSk2xV2XkUkX",60 * 60 * 24)
// 填寫Date對象，明確指定過期時間
this.$cookies.set("user_session","25j_7Sl6xDq2Kc3ym0fmrSSk2xV2XkUkX", new Date(2017, 03, 12))
// 填寫一個時間字符串，指定過期時間
this.$cookies.set("user_session","25j_7Sl6xDq2Kc3ym0fmrSSk2xV2XkUkX", "Sat, 13 Mar 2017 12:25:57 GMT")
//瀏覽器會話結(jié)束時過期
this.$cookies.set("default_unit_second","input_value","0");
//永不過期
this.$cookies.set("default_unit_second","input_value",-1); 

npm install vue-cookies --save

// vue-cookies配置
import cookies from 'vue-cookies'
Vue.prototype.$cookies = cookies;

this.$cookies.set(keyName, value[, expireTimes[, path[, domain[, secure]]]]) ? //return this
// 簡潔使用
this.$cookies.set('key','value', '過期時間,按秒計');
// 示例
this.$cookies.set('username',response.data.username, '張三');

this.$cookies.get(keyName) ? ? ? // return value

this.$cookies.remove(keyName);

this.$cookies.isKey(keyName)

this.$cookies.keys()